Darwis, Muh, Dhiya Muchlisa, and Ade Onny Siagian. “The Effectiveness of the Occupational Health and Safety Management System at PT. PLN (Persero)”. GNOSI: An Interdisciplinary Journal of Human Theory and Praxis 3, no. 3 (January 4, 2021): 120-129. Accessed October 25, 2021. https://gnosijournal.com/index.php/gnosi/article/view/77.